i think the car is surging but not sure - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 10-22-2009, 11:10 AM   #1
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Default i think the car is surging but not sure

i have a 96 SSEI. i dont know how to explain what the car is doing but i'll give it a try. when i'm in over drive about 85-90 km/h it runs good but if i start going up a small hill and the RPM'* go from 1500 to 1700-1800 the car seems to buck or serge. is it possible that the super charger belt is worn cause it seems tight, or maybe i need some new wires and plug or maybe a new fuel filter. please can some help me cause i have to drive 5000km next month. thanks.
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Old 10-22-2009, 11:20 AM   #2
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When did you last do plugs, wires, air filter, fuel filter, etc.
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Old 10-22-2009, 11:23 AM   #3
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I've heard of a lot of members complain, my self included of surging in over drive at about 45-50 MPH, that'* close to the speed you listed. This is the torque converter going in and out of lockup. I either go a little faster, slower or shift down one gear.
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Old 10-22-2009, 12:55 PM   #4
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i bought the car about 3 months ago and it ran GREAT, so i didn't do anything to it, it still runs great except for the problem i'm having. i wish i could be more specific about the way the car is running. it seems that the car starts to buck if a small load is put on the motor but evens back out when it drops down a gear. also for an SSEI i thought there would be MORE power to it. damn my 97 blazer 4.3lt has more power. if it is the torque converter what can i do about it,
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Old 10-22-2009, 12:58 PM   #5
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Not much really. That'* just the RPM that it goes in to lock up. It'* shifting back and forth, that'* the surging. When I get to that point I just drop a gear.
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Old 10-22-2009, 01:00 PM   #6
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for an SSEI i thought there would be MORE power to it. damn my 97 blazer 4.3lt has more power. if it is the torque converter what can i do about it,
According to your boost gage, how much boost are you getting at WOT?
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Old 10-22-2009, 01:16 PM   #7
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i'm not sure i will take the car out and see what it is at, what is WOT, and should i get a reading under normal driving or flat out to the floor.
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Old 10-22-2009, 01:23 PM   #8
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If your blazer appears to have more power, there'* an issue.

Sounds like a tune up hasn't been done in a while. I'd start there.
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Old 10-22-2009, 02:01 PM   #9
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i'm not sure i will take the car out and see what it is at, what is WOT, and should i get a reading under normal driving or flat out to the floor.
Flat out to the floor.
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Old 10-22-2009, 02:12 PM   #10
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WOT = Wide Open throttle
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